317LMN stainless steel plate – UNS S31726

317LMN stainless steel is a high molybdenum, austenitic stainless steel with a higher nickel content than 317L and the addition of nitrogen. Nitrogen provides additional strength to this grade, and like the regular variations, it can only be cold worked to harden.

Our 317LMN steel plate is perfect for sulfur rich environments, where its high molybdenum content improves corrosion resistance. The addition of nitrogen also improves its strength and ability to resist corrosion at grain boundaries when welded. Ask about our full service shearing and cutting services for this grade!

317LMN is frequently used in power plant environments for flue gasses, paper pulp, acidic dyes in textiles, and other chemical processing applications.

317LMN Inventory Size Ranges

Plate

0.625" - 1.250"

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Standard Inventory Specifications

UNS S31726 - 317LMN
ASTM A 240
ASTM A182
ASTM A167
ASME SA 240

Common Applications of 317LMN

Pulp and paper processing
Food processing equipment
Textiles and acidic dyes
Condensers for nuclear and fossil fuel power plants

Chemical Composition

317LMN Stainless Steel Composition
	Element	Percent by Weight
C	Carbon	3.00
Mn	Manganese	200
Si	Silicon	75.00
Cr	Chromium	17.00 - 20.00
Ni	Nickel	13.70 - 17.50
Mo	Molybdenum	4.00 - 5.00
P	Phosphorous	4.50
S	Sulfur	0.03
N	Nitrogen	0.1 - 0.2
Fe	Iron	Balance